/*
* Minecraft Forge
* Copyright (c) 2016.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.minecraftforge.client.model;
import com.google.common.base.Objects;
import net.minecraftforge.common.model.IModelPart;
import net.minecraftforge.common.model.IModelState;
import net.minecraftforge.common.model.TRSRTransformation;
import com.google.common.base.Optional;
public class ModelStateComposition implements IModelState
{
private final IModelState first;
private final IModelState second;
public ModelStateComposition(IModelState first, IModelState second)
{
this.first = first;
this.second = second;
}
public Optional<TRSRTransformation> apply(Optional<? extends IModelPart> part)
{
Optional<TRSRTransformation> f = first.apply(part), s = second.apply(part);
if(f.isPresent() && s.isPresent())
{
return Optional.of(f.get().compose(s.get()));
}
return f.or(s);
}
@Override
public boolean equals(Object o)
{
if (this == o)
{
return true;
}
if (o == null || getClass() != o.getClass())
{
return false;
}
ModelStateComposition that = (ModelStateComposition) o;
return Objects.equal(first, that.first) && Objects.equal(second, that.second);
}
@Override
public int hashCode()
{
return Objects.hashCode(first, second);
}
}